.class_bot {
  margin-top: 86px;
}

.class_bot .bot_name {
  width: 379px;
  height: 35px;
  color: #fffcfc;
  background: #143054;
  text-align: center;
  line-height: 35px;
  margin: 0 auto;
}

.class_bot .boot_title {
  text-align: center;
  color: #000000;
  font-size: 36px;
  margin-bottom: 36px;
}

.us_detail {
  width: 100%;
  background: #f8f8f8;
  margin-bottom: 85px;
  padding-top: 83px;
}

.us_detail .detail_left {
  display: flex;
}

.us_detail .detail_left #box {
  width: 615px;
  height: 370px;
}

.us_detail .detail_left .detail_map {
  width: 615px;
  height: 370px;
  margin-left: 43px;
}

.us_detail .detail_left .left_item .item_side {
  display: flex;
  align-items: center;
  margin-bottom: 78px;
}

.us_detail .detail_left .left_item .item_side .item_title {
  font-size: 18px;
  color: #000000;
}

.us_detail .detail_left .left_item .item_side .item_img {
  width: 73px;
  height: 73px;
  background: #dededf;
  border-radius: 50%;
  position: relative;
  margin-right: 56px;
}

.us_detail .detail_left .left_item .item_side .item_img img {
  position: absolute;
  top: 50%;
  left: 50%;
  margin-top: -21px;
  margin-left: -21px;
}

.about_bg {
  background: url(../img/us1.png) no-repeat;
  background-size: 100% 100%;
  height: 400px;
}

.foot {
  background: url(../img/goot5.jpg);
  width: 100%;
  height: 321px;
  background-size: cover;
  position: relative;
}

.foot .foot_cont {
  display: flex;
  align-items: center;
  justify-content: space-between;
  align-items: center;
  width: 1200px;
  margin: 0 auto;
  height: 240px;
}

.foot .foot_cont .font_box {
  color: #fff;
  font-size: 20px;
  margin-top: 40px;
}

.foot .foot_cont .font_box .title {
  color: #fff;
  font-size: 18px;
}

.foot .foot_cont .font_box .title_c {
  font-size: 20px;
  margin-bottom: 30px;
}

.foot .foot_bottom {
  background: rgba(0, 0, 0, 0.5);
  position: absolute;
  bottom: 0;
  width: 100%;
  height: 60px;
  text-align: center;
  color: #fff;
  line-height: 60px;
}

.head {
  width: 1920px;
  height: 80px;
  background: #0c1827;
  width: 100%;
  position: relative;
}

.head .nav_list {
  position: absolute;
  right: 186px;
  height: 100%;
  display: flex;
  align-items: center;
}

.head .nav_list .item_off {
  margin: 31px;
}

.head .nav_list a {
  color: #fff;
  font-size: 20px;
}

.what_you {
  text-align: center;
  margin-top: 46px;
  margin-bottom: 118px;
}

.what_you .what_title {
  color: #ccc;
  font-size: 60px;
  margin-bottom: 14px;
}

.what_you .what_name {
  color: #333333;
  font-size: 30px;
  margin-bottom: 14px;
}

.what_you .what_off {
  width: 282px;
  height: 4px;
  background: #ec1111;
  margin: 0 auto;
  margin-bottom: 46px;
}

.what_you .what_cont {
  color: #cccccc;
  font-size: 18px;
}
